Pump.



P. UHRISTMAN.

PUMP.

APPLIGATION FILED APRJB, 1912.

1 ,054, 1 74;, Patented Feb. 25, 1913.

CDLUMBM 'PLANOGRAPH 0..wAsHlNu-roN, D` c.

UNITED STATES PATENT OFFICE.,

PETER CHRISTIVIAN, 0F GREEN BAY, WISCONSIN.

PUMP.

To all 'whom t may concern:

Be it known that I, PETER CHRISTMAN, a citizen of the United States,residing at Green Bay, in the county of Brown and State of Tisconsiinhave invented certain new and useful Improvements in Pumps; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in pumps. l

One object of the invention is to provide a submerged pump having animproved construction and arrangement of intake and dischargingmechanism capable of taking in and delivering large quantities of waterwith a minimum amount of power.

Another object is to provide a pump of this character which will besimple, strong and durable in construction, efficient and reliable inoperation and well adapted to the purpose for which it is designed.

1V ith these and other objects in view, the invention consists ofcertain novel features of construction, and the combination andarrangement of parts as will be more fully described and claimed.

In the accompanying drawings; Figure 1 is a perspective view of myimproved pumping mechanism with the top plate or upper end of thepumping cylinder removed; Fig. 2 is a central vertical section of thepump cylinder or lower end of the delivery pipe; Fig. 3 is a top planview of the pumping cylinder; Fig. a is a horizontal sectional view ofthe same.

In t-he embodiment of the invention, I provide a pump cylinder 1 closedat its lower end by a bottom plate or head 2 having thereon a centrallydisposed step bearing 3. The upper end of the cylinder 1 is exteriorlythreaded and has screwed thereon an upper head having a downwardlyprojecting annular flange 5 threaded on its inner side to engage thethreaded upper end of the cylinder 1. On the head l is an upwardlyprojecting annular flange 6 the diameter of which is slightly less thanthe diameter of the head as shown. In the center of the head 4 is abearing opening for the pump operating shaft7 which projectstherethrough and extends downwardly through the cylinder and has itslower end revolubly mounted in the step bearing 3 in the bottomSpecification of Letters Patent.

Application filed April 18, 1912.

Patented Feb. 25, 1913.

serial No. 691,552.

or lower head 2 of the cylinder. The head 4 is provided on its upperside around the bearing opening with a stuffing box 8 which provides afluid tight joint between the shaft and head of the cylinder. The upperend of the shaft 7 projects a suitable distance above the top of thecylinder and has its upper end squared as at 9 to receive a squaredsocket in the lower end of an extension shaft 10 which may be of anysuitable lengt-h and extends to the top of the well.

In the head or top plate t of the cylinder is an annular series of waterdischarging ports 11 each of which is closed by a separate flap valve12, said valves being preferably provided on their inner edges withhinge members 13 which are engaged with hinge members 14 on the upperside of the head 4: as shown. By hingedly connecting the valves in themanner described they will swing upwardly from the pressure of the waterforced upwardly through the ports from the cylinder as will behereinafter more fully described. In one side of the cylinder 1 is avertically disposed elongated water inlet opening 15 which opens into areceiving chamber 16 in the pumping cylinder, said chamber beingpreferably formed by vertically disposed diverging side walls 17 whichjoin or are formed integral at their inner edges adjacent to the shaft 7and at their outer edges closely engage or are formed integral with theinner sides of the cylinder thereby forming between themselves avertically disposed passage which is V-shaped in cross section andextends from the bottom to the top of the cylinder. In the side walls 17of the receiving chamber 1G are elongated vertically disposed waterdischarging ports 1S and 19. The port 18 is closed by a verticallydisposed flap valve 2O while the port 19 is closed by a similar valve21. The top or upper end of the receiving chamber 1G is closed by atriangular shaped top 2B in the opposite edges of which areseini-circular notches 24 the purpose of which will be hereinafterdescribed.

Fixedly mounted on or formed integral with the shaft 7 is a radiallyprojecting piston wing or blade 25 which extends outwardly to the innersurface of the cylinder and has in its outer edge a vertically disposedgroove 26 in which is arranged a packing strip 27. The packing strip 27forms a fluid tight engagement between the outer edge of the wing orblade 25 and the inner' surface of the cylinder. The upper end of thewing or blade 25 fits closely against the under side of the upper head 4of the cylinder and on the opposite sides of the blade at its upper endand projecting in opposite directions are port covering lugs 28 thepurpose of which will be hereinafter described. Connected with the upperend of the cylinder is delivery pipe Q9 the lower end of whichpreferably fits over and forms a fluid tight engagement with theupwardly projecting flange 6 of the head 4. The pipe 29 extends upwardlyto the top `of the well or body of water in which the pump is submergedand may be of any desired length for conveying and discharging the waterat the desired point.

In the operation of the pump the shaft 7 and the wing or blade 25 areoscillated or turned irst in one direction and then in the other by anysuitable operating mechanism (not shown). When the wing or blade 25 isturned in the direction shown by the full line arrow a. in Fig. 4t ofthe drawing7 a suction is created between the blade and one side of thechamber 16 .which will open the iap valve 21 of the port 19 and willdraw a charge of water through the receiving chamber into the cylinderon this side of the piston wing. While the water is thus being drawninto the cylinder on this side of the piston blade or wing, the waterbetween the opposite side of the piston and the adjacent side of thereceiving chamber will be forced out through the ports 11 and into thedelivery pipe above the cylinder. In thus discharging, the water willlift the valves 12 ahead of the piston while the suction action of thepiston will close and hold the valves 12 in closed position as they arepassed by the piston in its oscillating movement. vWhen the piston ismoving in the direction described it will be understood that the forceof the water compressed by the piston will close and hold the flap valve20 in close engagement with the port 18 in this side of the receivingchamber. then the piston has completed its stroke in this direct-ion andhas been brought into engagement with this side of the chamber, saidpiston is swung back by its operating mechanism in the oppositedirection as shown by the dotted line arrow .7) in Fig. 4 and whenmoving in this direction the valve 21 of the port 19 will be closedwhile the valve 20 of the port 18 in the opposite side of the receivingchamber will be open and water will be drawn into this side of thecylinder while the water previously drawn in the opposite side will beforced out through the discharge ports 11 as will be understood In orderto preventthe water from the delivery pipe Q9 from ruiming back into thecylinder should any of the valves 12 of the ports 11 fail to closequickly enough when the piston wing or blade 25 passes beneath the same,I provide said piston wing with the port covering lugs 28 hereinbeforereferred to said lugs passing beneath the ports and forming a fluidtight engagement with the inner side of the head 4t, thus keeping theports covered for a brief period after the upper edge of the piston winghas passed beneath the same, and giving the valve time to close tightlywhich will prevent the water in the delivery pipe from running back intothe cylinder behind the piston. The semi-circular recesses 24 in the topof the water receiving chamber of the cylinder are provided to receivethe port covering lugs 28 on the piston blade thereby permitting theblade to be swung into close engagement with the opposite sides of thewater receiving chamber as will be readily understood.

By constructing and arranging the water inlet ports in the mannerdescribed it will be seen that each operation of the piston will drawlarge quantities of water into the cylinder and by providing a pluralityof discharge ports arranged as herein shown and described the waterdrawn into the cylinder by the piston will be forced out through saidports and the operation of the wing or blade in forcing the water outthrough said ports will require a comparatively small amount of power.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as shown.

Having thus described my invention, what I claim is:

1. A pump of the character described comprising a cylinder havingtherein a longitudinally disposed inlet port and a plurality of waterdischarging ports, a water receiving chamber arranged in the cylinderand communicating with said inlet port, said chamber having in it-ssides, water discharging ports, valves to close the latter, a pistonoperating shaft, a piston wing operated by said shaft and adapted to beoscillated in the cylinder whereby water is drawn into the same on oneside of said pist-on and forced out of the cylinder on the opposite sideof the piston, the upper portion of said piston wing` being adapted forengagement with the water discharging ports for the purpose described.

2. In a pump of the character described,

a cylinder having therein a water inlet port, a water receiving chamberarranged over said portand having in its opposite sides waterdischarging ports, valves to close said ports, a. head on the upper endof said cylinder, said head having therein a plurality of waterdischarging ports, valves adapted to close said ports, a pistonoperating shaft revolubly mounted in said cylinder, a piston wingcarried by said shaft and having a fluid tight engagement with the innersurface of the cylinder whereby when said wing is swung in one directionwater will be drawn into the cylinder from said receiving chamber on oneside of the piston and forced out through the discharge ports of thecylinder on the opposite side of the piston, and lugs arranged on theupper end of said piston wing and projecting beyond the sides of thesame for covering the water discharging ports.

3. In a pump of the character described, a cylinder having therein awater inlet port, a water receiving chamber arranged over said port andhaving in its opposite sides water discharging ports, valves to closesaid ports, a head on the upper end of said cylinder, said head havingtherein a plurality of water discharging ports, valves adapted to closesaid ports, a piston operating shaft revolubly mounted in said cylinder,a piston wing carried by said shaft and having a fluid tight engagementwith the inner surface of the cylinder whereby when said wing is swungin one direction the water will be drawn into the cylinder from saidreceiving chamber on one side of the piston and forced out through thedischarge ports of the cylinder on the opposite side of the piston. andport closing lugs carried by the upper end of said piston wing, saidlugs having a fluid tight engagement with the inner side of the pistonhead to cover and close the discharge ports therein for a brief periodafter the piston has passed beneath the ports whereby the water forcedthrough the ports is prevented froin rentering the cylinder should thevalves of the ports fail to close quicl-:ly after the passage of thepiston beneath the ports.

e. In a pump of the character described, a cylinder having therein awater inlet port, a water receiving chamber arranged over said port andhaving in its opposite sides water discharging ports, outwardly openingvalves to close said ports, a top to close the upper end of saidchamber, said top having in its opposite side edges recesses, a head onthe upper end of said cylinder having thereon a plurality of waterdischarging port-s, valves to close said ports, a piston operating shaftrevolubly mounted in said cylinder, a piston wing carried by said shaftand having a Huid tight engagement with the inner surface of thecylinder whereby when said wing is swung in one direction the water willbe drawn from the cylinder from said receiving chamber on one side ofthe piston and forced out through the discharge ports in the cylinderhead on the opposite side of the piston, covering lugs carried by saidpiston and adapted to close the ports in said cylinder head for a briefperiod after the piston wing has passed beneath said ports, said lugsbeing adapted to enter the recesses in the top of the water receivingchamber whereby the piston wing is permitted to swing close to the sidesof said chamber, and a water delivering pipe connected with the upperend of the cylin` der.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

PETER CHRISTMAN.

vWitnesses:

VERA M. SHRIBER, H. J. JANSSEN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

